Geophysical exploration using near surface structure corrections

Details Geophysical exploration using near surface structure corrections Geophysical exploration using near surface structure corrections

1990-12-31

1991-12-17

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 36, 367 73, G01V 136

Patent

active

050738763

ABSTRACT:
Weathering corrections are determined from first arrival times of refraction stacked traces of common end point gathers. The refraction stacked traces are generated by selecting traces having receiver source offsets greater than the crossover distance and stacking such traces over at least an interval comprising first arrival times. Optionally, a predictor function is used to select first arrivals and the first arrivals are selected from a refraction stacked trace section.

REFERENCES:
patent: 3629798 (1971-12-01), Rockwell
patent: 4101867 (1978-07-01), Martin
patent: 4498157 (1985-02-01), Martin et al.
patent: 4528649 (1985-07-01), Gassaway et al.
patent: 4695984 (1987-09-01), Paal
Farrell et al., "Refraction Statics," Proc. IEEE, vol. 72, #10, Oct. 1984.
Kearey et al., "Seismic Refraction Surveying" in an Introduction to Geophysical Exploration (London, 1984) pp. 74-79, 111-137.

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